Salaah

Q: Is it preferable for the Imam to lengthen the Ruku' briefly when hearing someone entering the Masjid to join the Salaah?

Q: I visited a certain website, according to them hanafis can't pray behind Imams of the haramain if they don't take care of the masaail in wudu as hanafis do i.e they should do masah of head to more than quarter of the head, if they don't do we can't pray behind them. I think this is not good, at the time of Sahaba there would not have been such an issue as to not offer salah behind any specific sahabi. Please clarify.

Q: If a person forgets to make Sajda Sahw and has made both Salaams can he still make the Sajda Sahw and does he repeat Attahiyaat, Durud and dua after Durood?

Q:

1. List the circumstances under which an Imam who is the most knowledgeable may in his own presence permit a man of lesser knowlege to be Imam for that Salaah; meaning that how is it possible for an Aalim to permit a hafiz to be Imam when the more knowledgeable person has the responsibility by virtue of his greater knowledge to correctly be the appropriate Imam?
2. Does the Imaamat of the unappointed Imaam, despite it being out of place, does the Salaah of such an Imaam and that of those musallees following such an unappointed Imaam, become an invalid or null and void Salaah?

Q: The Imaam of my Musjid trims his beard to less than a fist length. Should I pray salah after him or not?

Q: Kindly advise me which are some of the best Surah's or Ayaat to be recited during Salaatul Haajat?

Q: Our work has a makeshift prayer room with a toilet and hand basin in it - is this acceptable? The room is alongside the female toilets and a meeting room and noises carry through the wall into the prayer room - is this a problem? I use a disabled toilet close to the prayer room (10 metres) and have used a plastic bottle for cleansing. The company has taken the bottle away as they say it is a safety problem. I suggested they instal a hand held bidet (like a shower hose) to remove safety problem.  But they want me to use another disabled toilet that is further away (more than 50 metres and through many doors) because they don't want to upset disabled people. How far away should cleansing be from the prayer room?

Q: While doing sajdah women should touch their elbows to the ground. This is according to which maslak?

Q:

1. Could you please provide a hadith with translation  which proves that Prophet Sallalahu alaihe wasalaam recited durood and duaa in the first Qaidah of sunnat e ghair muakkadah salaah &  Sana in the third rakaah of sunnat e ghair muakkadah salaah as what the Fuqaha mention that the above method  is afdhal?
2. Is there a hadith which proves that Prophet Sallalahu alaihe wasalaam didn't recite durood and duaa in the first Qaidah of sunnat e ghair muakkadah salaah &  Sana in the third rakaah of sunnat e ghair muakkadah salaah?

Q: I had prayed witr, and few minutes later I thought I had forgot to make sajdah sahw so I decided to re-pray it. I made intention for witr and made takbir and after it I realised that I prayed the witr correctly so I made salam and left the prayer without completing it. Then I thought, since I started and broke it, I must pray it either way. So I prayed it. Is what I did correct?